2: 0.26× 4+2 towel =2.8 a towel =0.58 yuan
3. Let the floret be X6x+5 = 71x =11year.
4: How long is a step?
5: Short distance measurement can be directly measured by (ruler) or (tape measure). When measuring the distance between two distant points on the ground, first (estimate) and then (step).